We've saved the hostage. Now it's time to go after the Scarecrow. We head over to the Ace Chemical Plant where he's hiding out setting up the bomb. We get there and meet the Arkham Knight, who seems to know a lot about Batman. He's also prepared an army to take down Gotham.

Batman: Arkham Knight is the 4th and final installment in the Arkham series although it the 3rd one developed by Rocksteady. The events take place about a year after the events of Arkham City. Batman is trying to hunt down Scarecrow who has threatened to release a toxin into Gotham. Scarecrow has gathered some of Batman's villains including a mysterious Dark Knight to try and kill him once and for all. This game is the 1st in the Arkham series to introduce the Batmobile as a usable vehicle.